Golden Calcite - Elmwood Mine, TN Calcite Astrophyllite is a rare silicate

Astrophyllite is a rare silicate mineral composed of potassium

Quartz occurs in crystalline masses

a rare and extremely hard silicon dioxide polymorph of quartz that is formed by very high shock pressure

it's believed Basilosaurus would first attack its prey by crushing its skull

Ametrine is a naturally forming variety of Quartz that is a combination of both Amethyst and Citrine

Golden Calcite - Elmwood Mine, TN Calcite Astrophyllite is a rare silicateCalcite is one of the most common minerals which grows in a wide variety of different shapes, colors and translucencies. The mineral itself actually belongs to a calcite group of "related carbonates" that are "isomorphous" with each other. All members of the group crystalize in triangular formations, have perfect rhombohedron cleavages, and in transparent rhombohedrons, display strong double refractions. Aragonite and Calcite are similar in chemical